AMIS30622C6228RG

Overview

The AMIS30622C6228RG is an I²C micro-stepping motor driver and controller from onsemi, designed for precise stepper motor control. It integrates a position controller with a Serial Interface (I²C) to receive high-level positioning commands. The device supports micro-stepping resolutions of 1/2, 1/4, 1/8, and 1/16, enabling low resonance and noise operation. It features programmable peak current up to 800 mA, 20 kHz PWM current control, and automatic selection of fast/slow decay modes. Operating within a supply voltage range of 8 V to 29 V, it includes internal flyback FETs and fully integrated current detection. The component is AEC-Q100 qualified and housed in a SOIC-20 package.

Feature Summary

• Integrates a configurable position controller and I²C interface for direct communication with host microcontrollers.
• Supports multiple micro-stepping resolutions (1/2, 1/4, 1/8, 1/16) to minimize mechanical resonance and acoustic noise.
• Features automatic selection between fast and slow decay modes for optimized current chopping performance.
• Includes fully integrated current detection and internal flyback FETs for simplified board design.

Applications

• Automotive seat adjustment actuators
• Vehicle door lock mechanisms
• Throttle body control systems

Procurement Notes

Verify the specific suffix 'RG' against the official datasheet to confirm tape-and-reel packaging status, as standard variants may differ. Confirm end-of-life or obsolescence status prior to procurement, as availability may be limited. Ensure I²C address configuration matches system requirements. Validate thermal management solutions for the SOIC-20 package under maximum load conditions.

Selection Notes

Select this component when an integrated solution combining motion control logic and power driving is required. The I²C interface reduces pin count compared to parallel interfaces. Suitable for applications needing programmable acceleration/deceleration profiles and real-time position feedback. Consider the 800 mA output limit and 29 V maximum supply voltage when sizing for specific motor loads.

Part Context

This part belongs to the AMIS-3062x family of micro-stepping stepper motor drivers. The family includes variants with different interfaces, such as the AMIS30621 with LIN interface for remote connectivity and the AMIS30622 with I²C interface. These devices are designed to simplify the design of mechatronic systems by integrating control algorithms and power stages into a single chip.

Replacement Considerations

Check for direct substitutes within the AMIS-3062x family, such as AMIS30622C6228G, noting that suffix changes may indicate packaging differences rather than functional ones. Verify compatibility with existing I²C addressing and firmware configurations before switching components.